Women who have migraines may accumulate more lesions on their brains with age, but the significance is unclear, researchers say. / Medioimages/Photodisc Getty Images

by Kim Painter, Special for USA TODAY

by Kim Painter, Special for USA TODAY

Migraines and brains: Women who suffer from migraines are somewhat more likely than those who don't to have increasing numbers of small lesions on their brains as they age. But the lesions, seen on MRI scans, don't appear linked with any thinking or memory problems. It is unclear whether they pose any cause for concern, researchers say. (Bloomberg News)

Diabetes by the numbers: The world has a record number of people with diabetes, 371 million, and half of those people are undiagnosed, a new report says. The disease is spreading rapidly in poorer countries, says the International Diabetes Federation. (Reuters)

Doctor shortage: Good luck finding a family doctor in 2025. The USA will need about 52,000 more of those primary care doctors by then, a new study says. But those doctors are not in the pipeline, experts say. (ABC News)

Today's talker: This solution makes sense but might not occur to people of a certain age: If you've got vision problems, you might be able to read more easily from an iPad, Kindle or other tablet than from a printed page. Researchers say they tried this idea with 100 people with so-called 'low vision,' caused by problems such as macular degeneration and diabetes. Sure enough, reading speed increased when participants switched from paper to back-lit tablets, especially when they bumped up font sizes. But it's worth noting that people with the mildest vision impairment still preferred reading the old-fashioned way. (TIME)